CN214404915U - Valve head of black water and grey water regulating valve - Google Patents
Valve head of black water and grey water regulating valve Download PDFInfo
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- CN214404915U CN214404915U CN202120530214.5U CN202120530214U CN214404915U CN 214404915 U CN214404915 U CN 214404915U CN 202120530214 U CN202120530214 U CN 202120530214U CN 214404915 U CN214404915 U CN 214404915U
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Abstract
The utility model discloses a black water buck regulating valve head, include: the connecting seat is cylindrical, a circular blind groove is formed in the bottom of the connecting seat, a bolt is connected to the center of the circular blind groove of the connecting seat through an installation column, and the diameter of the installation column is smaller than that of the circular blind groove; the bottom end of the valve core is of a conical structure, an internal thread circular groove is formed in the top of the valve core, the internal thread circular groove is in threaded connection with a bolt in a matched mode, a clamping ring with the diameter smaller than the top of the valve core is arranged at the top end of the valve core, and the clamping ring is connected with a round blind groove in a matched mode. The internal thread circular groove thread fit of the bolt and the valve core is adopted, so that the valve head joint is changed into a bolt form, the mechanical performance of the valve head is improved, the upper and lower staggered fit of the connecting seat and the clamping ring is used, the bolt and the internal thread circular groove inside are protected, the mechanical strength of the joint is integrally improved, the service life of the valve is prolonged, and the size of the valve core is reduced.
Description
Technical Field
The utility model relates to a black water grey water governing valve's valve head subassembly technical field specifically is a black water grey water governing valve head.
Background
During operation, the black water and grey water regulating valve changes the flow area of the valve mainly through axial displacement of the valve core assembly, so that the effect of regulating process pressure and liquid level is achieved. The valve core assembly is the core component of the black water grey water regulating valve. The design of the valve core assembly not only determines the regulating capacity of the regulating valve, but also determines the operational reliability of the valve.
For small bore (small flow capacity) black water grey water regulating valves. The tungsten carbide part adopted by the common valve core assembly is fastened on the valve rod through a nut. The size of the valve core per se is smaller than that of the valve rod due to the fluid capacity, and the relative size of the joint of the valve core and the valve rod made of tungsten carbide is smaller. Although the tungsten carbide material has high hardness and good wear resistance, the material itself is brittle.
In field use, due to the effects of normal opening and closing of the valve, a medium conveying structure and residual force of the actuating mechanism, the valve core is easy to break at a weak position connected with the nut, the valve core finally falls off, the valve fails to work normally, the overcurrent performance of the valve is poor due to the connection form of the nut, and the hydraulic loss of the valve is increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a black water grey water governing valve head, valve head junction changes the bolt form into, improves valve head mechanical properties, has increased the life of valve, has reduced the case size, provides the fluid ability of valve, has reduced the hydraulic loss of valve, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a black water grey water regulator valve head comprising:
the connecting seat is cylindrical, a circular blind groove is formed in the bottom of the connecting seat, a bolt is connected to the center of the circular blind groove of the connecting seat through an installation column, and the diameter of the installation column is smaller than that of the circular blind groove;
the bottom end of the valve core is of a conical structure, an internal thread circular groove is formed in the top of the valve core, the internal thread circular groove is in threaded connection with a bolt in a matched mode, a clamping ring with the diameter smaller than the top of the valve core is arranged at the top end of the valve core, and the clamping ring is connected with a round blind groove in a matched mode.
The internal thread circular groove thread fit of the bolt and the valve core is adopted, so that the valve head joint is changed into a bolt form, the mechanical performance of the valve head is improved, the upper and lower staggered fit of the connecting seat and the clamping ring is used, the bolt and the internal thread circular groove inside are protected, the mechanical strength of the joint is integrally improved, the service life of the valve is prolonged, and the size of the valve core is reduced.
Furthermore, the diameter of the top of the valve core is the same as that of the bottom of the connecting seat. The valve core and the connecting seat form a main body of the valve head, the outside diameters are the same, the whole consistency is high, the contact area with the outside is reduced, and the area possibly corroded by fluid media is reduced.
Further, still include the valve rod, the top of connecting seat is frustum form and the top is connected with the valve rod. The diameter of the top of the connecting seat is consistent with that of the valve rod, and the contact area with the fluid medium is reduced.
Further, still include the external seal ring, be equipped with the external seal ring between the bottom of connecting seat and the top of case, and the external seal ring cup joints on the snap ring. The outer seal ring can increase the connection leakproofness of connecting seat and case, avoids fluid medium to enter into and corrodes bolt and internal thread circular slot in the circular blind groove, and the tungsten carbide material can be paintd in the outside of outer seal ring, avoids it to be corroded.
Furthermore, still include interior backing ring, the top of snap ring is equipped with interior backing ring, and the side of interior backing ring cup joint at the erection column. The inner backing ring carries out secondary protection on the bolt and the internal thread circular groove.
Further, the bottom of bolt is provided with the chamfer, and the inboard top of snap ring has seted up and has made things convenient for bolt bottom male annular card to go into the groove.
Compared with the prior art, the beneficial effects of the utility model are that: this black water grey water governing valve head has following benefit:
1. the internal thread circular groove thread fit of the bolt and the valve core is adopted, so that the valve head joint is changed into a bolt form, the mechanical performance of the valve head is improved, the upper and lower staggered fit of the connecting seat and the clamping ring is used, the bolt and the internal thread circular groove in the valve head are protected, and the mechanical strength of the joint is integrally improved.
2. The service life of the valve is prolonged, the size of the valve core is reduced, the fluid capacity of the valve is provided, and the hydraulic loss of the valve is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 case, 2 connecting seats, 3 erection columns, 4 snap rings, 5 bolts, 6 internal thread circular slots, 7 inner backing rings, 8 outer seal rings and 9 valve rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the first embodiment, referring to fig. 1, the present embodiment provides a technical solution: a black water grey water regulator valve head comprising:
the connecting seat 2 is cylindrical, a round blind groove is formed in the bottom of the connecting seat 2, the center of the round blind groove of the connecting seat 2 is connected with a bolt 5 through an installation column 3, and the diameter of the installation column 3 is smaller than that of the round blind groove;
The diameter of the mounting column 3 is slightly larger than that of the bolt 5, and the bolt 5 can be limited after being screwed into the internal thread circular groove 6.
Adopt the 6 screw-thread fit of the internal thread circular slot of bolt 5 and case 1, make the valve head junction change into the bolt form to improve valve head mechanical properties, and use connecting seat 2 and snap ring 4's crisscross cooperation from top to bottom, not only protect inside bolt 5 and internal thread circular slot 6, also wholly improved the mechanical strength of junction, increased the life of valve, reduced the case size.
The diameter of the top of the valve core 1 is the same as that of the bottom of the connecting seat 2. The valve core 1 and the connecting seat 2 form a main body of the valve head, the outside diameters are the same, the whole consistency is high, the contact area with the outside is reduced, and the area possibly corroded by fluid media is reduced.
Still include valve rod 9, the top of connecting seat 2 is frustum form and the top is connected with valve rod 9. The top diameter of connecting seat 2 keeps unanimous with valve rod 9 diameter, also reduces the area with the fluid medium contact, and the bottom of bolt 5 is provided with the chamfer, and the inboard top of snap ring 4 is seted up and is made things convenient for 5 bottom male annular snap-in grooves of bolt, and when installing bolt 5, the setting of chamfer is very easy to stretch into snap ring 4 inboardly, then with 6 threaded connection of internal thread circular slot.
In the second embodiment, referring to fig. 1, the present embodiment provides a technical solution: the utility model provides a black water grey water governing valve head, this embodiment is roughly the same with embodiment structure, and the difference lies in, still includes external seal ring 8, is equipped with external seal ring 8 between the bottom of connecting seat 2 and the top of case 1, and external seal ring 8 cup joints on snap ring 4. The outer seal ring 8 can increase the connection leakproofness of connecting seat 2 and case 1, avoids fluid medium to enter into and corrodes bolt 5 and internal thread circular slot 6 in the circular blind slot, and the tungsten carbide material can be paintd in the outside of outer seal ring 8, avoids it to be corroded.
Still include interior backing ring 7, the top of snap ring 4 is equipped with interior backing ring 7, and interior backing ring 7 cup joints the side at erection column 3. The inner backing ring 7 carries out secondary protection on the bolt 5 and the internal thread circular groove 6.
In other embodiments, the bottom of the internal thread circular groove 6 is provided with a process circular groove with a diameter larger than the internal diameter of the internal thread circular groove 6, and a tolerance gap is left.
It should be noted that in the above embodiments, the outer sides of the connecting seat 2, the valve rod 9 and the valve core 1 are coated with tungsten carbide coatings.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a black water buck governing valve head which characterized in that: the method comprises the following steps:
the connecting seat (2) is cylindrical, a round blind groove is formed in the bottom of the connecting seat, the center of the round blind groove of the connecting seat (2) is connected with a bolt (5) through an installation column (3), and the diameter of the installation column (3) is smaller than that of the round blind groove;
the bottom end of the valve core (1) is of a conical structure, an internal thread circular groove (6) is formed in the top of the valve core (1), the internal thread circular groove (6) is in threaded connection with a bolt (5) in a matched mode, a clamping ring (4) with the diameter smaller than the top of the valve core (1) is arranged at the top end of the valve core (1), and the clamping ring (4) is connected with a circular blind groove in a matched mode.
2. The black water grey water regulator valve head of claim 1, wherein: the diameter of the top of the valve core (1) is the same as that of the bottom of the connecting seat (2).
3. The black water grey water regulator valve head of claim 1 or 2, wherein: still include valve rod (9), the top of connecting seat (2) is frustum form and the top is connected with valve rod (9).
4. The black water grey water regulator valve head of claim 1, wherein: the connecting device is characterized by further comprising an outer sealing ring (8), wherein the outer sealing ring (8) is arranged between the bottom of the connecting seat (2) and the top of the valve core (1), and the outer sealing ring (8) is sleeved on the clamping ring (4).
5. The black water grey water regulator valve head of claim 1 or 4, wherein: still include interior backing ring (7), the top of snap ring (4) is equipped with interior backing ring (7), and interior backing ring (7) cup joint the side at erection column (3).
6. The black water grey water regulator valve head of claim 5, wherein: the bottom of bolt (5) is provided with the chamfer, and the inboard top of snap ring (4) is seted up and is made things convenient for bolt (5) bottom male annular card to go into the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120530214.5U CN214404915U (en) | 2021-03-15 | 2021-03-15 | Valve head of black water and grey water regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120530214.5U CN214404915U (en) | 2021-03-15 | 2021-03-15 | Valve head of black water and grey water regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404915U true CN214404915U (en) | 2021-10-15 |
Family
ID=78029100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120530214.5U Active CN214404915U (en) | 2021-03-15 | 2021-03-15 | Valve head of black water and grey water regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404915U (en) |
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2021
- 2021-03-15 CN CN202120530214.5U patent/CN214404915U/en active Active
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